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法兰连接铜合金的闸阀、截止阀及止回阀结构长度标准_阀门标准
|
单位为毫米 |
|||
|
|
公称压力PN/Mpa |
||
|
公称通径 |
1.0～2.0 |
4.0 |
|
|
DN |
结构长度 |
||
|
|
短 |
长 |
|
|
10 |
45 |
80 |
108 |
|
15 |
55 |
||
|
20 |
57 |
90 |
117 |
|
25 |
68 |
100 |
127 |
|
32 |
73 |
110 |
146 |
|
40 |
77 |
120 |
159 |
|
50 |
84 |
135 |
190 |
|
65 |
100 |
165 |
216 |
|
80 |
120 |
185 |
254 |
|
100 |
140 |
— |
— |
|
基本系列 |
— |
18 |
7 |
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